Conveyor chain idler unit



FIG. 1 is a top plan view of a conveyor chain idler unit showing my new design;

FIG. 2 is a cross-section taken on line 2--2 of FIG. 1; and

FIG. 3 is a peripheral view of the idler wheel pulley shown separately for clarity of illustration. 

The ornamental design for conveyor chain idler unit, as shown and described. 